Ultramarine

#0F178B

General Information about Ultramarine

Ultramarine, represented by the hexadecimal color code #0F178B, is a deep and intense shade of blue. It is often associated with qualities such as depth, stability, and wisdom. In color psychology, blue is generally linked to trust, loyalty, and confidence, making Ultramarine a popular choice for brands aiming to convey these attributes. The name 'Ultramarine' originates from the Latin 'ultramarinus,' meaning 'beyond the sea,' as the pigment was originally derived from the gemstone lapis lazuli, imported from distant lands. Chemically, Ultramarine is a complex sodium aluminosilicate with sulfur, giving it its characteristic blue hue. This color is used in a variety of applications, from digital design and web development to traditional art and printing. Its rich pigmentation and historical significance make it a compelling and versatile color choice.

The color #0F178B, also known as Ultramarine, presents significant accessibility challenges due to its deep, saturated hue. When used as a background color, it requires very light text (ideally white or near-white) to ensure sufficient contrast for readability. According to WCAG guidelines, a contrast ratio of at least 4.5:1 is recommended for standard text and 3:1 for large text. Ultramarine's darkness often necessitates careful selection of foreground colors to meet these standards. Avoid pairing it with mid-tone or dark colors, as this will likely result in insufficient contrast, making the text difficult to read for users with visual impairments. Consider using color contrast checkers to verify compliance with accessibility standards. Also, provide alternative visual cues (e.g., icons, underlines) for interactive elements that rely solely on color to convey meaning. Ensuring proper accessibility is crucial for inclusivity and a better user experience.

Shades

Digital Color Formats

RGB
15 23 139
RGB15 23 139
Red
Green
Blue
HSL
236.13 80.52% 30.2%
236.1380.5230.2HSL
Hue
Saturation
Lightness
HWB
236.13 5.88% 45.49%
236.135.8845.49HWB
Hue
Whiteness
Blackness
hex#0F178B
rgb15 23 139
hsl236.13 80.52% 30.2%
cmyk89.21% 83.45% 0% 45.49%
hwb236.13 5.88% 45.49%
xyz5.16 2.58 24.65
CMYK
89.21% 83.45% 0% 45.49%
89.2183.45045.49CMYK
Cyan
Magenta
Yellow
Key
XYZ
5.16 2.58 24.65
5.162.5824.65XYZ
X
Y
Z

Alternative colors

Applications

Complementary color

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